710344021 has 4 divisors (see below), whose sum is σ = 711452844. Its totient is φ = 709235200.

The previous prime is 710344007. The next prime is 710344039. The reversal of 710344021 is 120443017.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 511392996 + 198951025 = 22614^2 + 14105^2 .

It is a cyclic number.

It is not a de Polignac number, because 710344021 - 2¹⁷ = 710212949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 710343983 and 710344001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (710344081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553450 + ... + 554731.

It is an arithmetic number, because the mean of its divisors is an integer number (177863211).

Almost surely, 2^710344021 is an apocalyptic number.

It is an amenable number.

710344021 is a deficient number, since it is larger than the sum of its proper divisors (1108823).

710344021 is a wasteful number, since it uses less digits than its factorization.

710344021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108822.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 710344021 is about 26652.2798461970. The cubic root of 710344021 is about 892.2562041804.

Adding to 710344021 its reverse (120443017), we get a palindrome (830787038).

The spelling of 710344021 in words is "seven hundred ten million, three hundred forty-four thousand, twenty-one".